Fetch() in workers cannot connect IPv6 hosts

Developers Workers
1

I tried to use fetch() to connect to one of my websites hosted on IPv6 networks only, but it returned:

connect(): Network is unreachable

Code pasted here:

async function handleRequest(request) {
      request = new Request(request)
      request.headers.set('Host', 'ipv6.google.com')
      const URL = 'https://ipv6.google.com'
      let response = await fetch(URL, request)
      response = new Response(response.body, response)
      return response
    }

I replaced the URL with https://ipv6.google.com, which is also hosted on IPv6 networks only. The error still appears.

Is workers backend connected to the IPv6 network? If not, when will the access be available?

Thanks.

2

True. Just tested the same code with https://ipv4.icanhazip.com/ and https://ipv6.icanhazip.com/, ipv6 fails.

3

I looked further into this and only fails IPv6 in development, once deployed across Cloudflare PoPs it does support iPv6.

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